Osamu Dazai said this quote

Society. I felt as though even I were beginning at last to acquire some vague notion of what it meant. It is a struggle between one individual to another, a then-and-there struggle, in which the immediate triumph is everything. ‘Human beings never submit to human beings.’ Even slaves practice their mean retaliations. Human beings cannot conceive of any means of survival except of a single then-and-there contest. They speak of duty to one’s country and such like things, but the object of their effort is invariably the individual, and, even once the individual’s needs have been met, again the individual comes in. The incomprehensibility of society is the incomprehensibility of the individual. The ocean is not society; it is individuals.